Anders Frisk - A history of official Chelsea complaints: in pictures

Feb 2005: Swedish referee Anders Frisk is subjected to death threats by
Chelsea supporters after the official is heavily criticised by the club's
management and players for his performance in the Champions League tie
against Barcelona at the Nou Camp, where he sent off Didier Drogba. Manager
Jose Mourinho claimed Frisk had invited Barca's manager Frank Rijkaard into
his room at half-time, in contravention of Uefa rules.

What happened next: Uefa charged Chelsea with inappropriate conduct,
with Mourinho receiving a two-game touchline ban. Frisk quit refereeing in
March, saying: "I have been subjected to things that I couldn't even
imagine. What has happened to me over the last 16 days means it is not worth
continuing."